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Manisha S, Shetty SS, Mehta V, SA R, Meto A. A Comprehensive Evaluation of Zirconia-Reinforced Glass Ionomer Cement's Effectiveness in Dental Caries: A Systematic Review and Network Meta-Analysis. Dent J (Basel) 2023; 11:211. [PMID: 37754331 PMCID: PMC10529821 DOI: 10.3390/dj11090211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/03/2023] [Accepted: 09/05/2023] [Indexed: 09/28/2023] Open
Abstract
Dental cements are in a constant state of evolution, adapting to better align with the intricacies of tooth structure and the dynamic movements within the oral cavity. This study aims to evaluate the efficacy of zirconia-reinforced glass ionomer cement-an innovative variant of modified glass ionomer cements-in terms of its ability to withstand compressive forces and prevent microleakage during dental caries reconstruction. An extensive search was conducted across various databases, encompassing PubMed-MEDLINE, Scopus, Embase, Google Scholar, prominent journals, unpublished studies, conference proceedings, and cross-referenced sources. The selected studies underwent meticulous scrutiny according to predetermined criteria, followed by the assessment of quality and the determination of evidence levels. In total, 16 studies were incorporated into this systematic review and network meta-analysis (NMA). The findings suggest that both compomer and giomer cements exhibit greater compressive strength and reduced microleakage values than zirconia-reinforced glass ionomer cement. In contrast, resin-modified glass ionomer cement (RMGIC) and high-viscosity glass ionomer cement (GIC) demonstrate less favorable performance in these regards when compared with zirconia-reinforced glass ionomer cement.
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Affiliation(s)
- Srikurmam Manisha
- Department of Conservative Dentistry & Endodontics, Dr. D. Y. Patil Dental College and Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune 411018, Maharashtra, India; (S.S.S.); (A.M.)
| | - Soumya S Shetty
- Department of Conservative Dentistry & Endodontics, Dr. D. Y. Patil Dental College and Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune 411018, Maharashtra, India; (S.S.S.); (A.M.)
| | - Vini Mehta
- Department of Dental Research Cell, Dr. D. Y. Patil Dental College and Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune 411018, Maharashtra, India
| | - Rizwan SA
- Scientist-D, ICMR-National Institute of Epidemiology, Chennai 600077, India;
| | - Aida Meto
- Department of Conservative Dentistry & Endodontics, Dr. D. Y. Patil Dental College and Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune 411018, Maharashtra, India; (S.S.S.); (A.M.)
- Department of Dentistry, Faculty of Dental Sciences, University of Aldent, 1007 Tirana, Albania
- Clinical Microbiology, School of Dentistry, University of Modena and Reggio Emilia, 41125 Modena, Italy
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Deger C, Özduman ZC, Oglakci B, Eliguzeloglu Dalkilic E. The Effect of Different Intermediary Layer Materials Under Resin Composite Restorations on Volumetric Cuspal Deflection, Gap Formation, and Fracture Strength. Oper Dent 2023; 48:108-116. [PMID: 36445957 DOI: 10.2341/21-211-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2022] [Indexed: 12/02/2022]
Abstract
This study investigated the effect of different intermediary layer materials under class II mesio-occluso-distal (MOD) resin composite restorations on volumetric cuspal deflection, gap formation, and fracture strength. In total, 32 sound human maxillary premolars were used. After large, standardized Class II MOD cavities were prepared, a universal adhesive (Clearfil Universal Bond Quick, Kuraray) was applied. The premolars were randomly allocated into four groups according to different intermediary layer materials (n=8): Group Z250 (control)/micro-hybrid composite (Filtek Z250, 3M ESPE); Group EST/low-viscosity bulk-fill resin composite (Estelite Bulk Fill Flow, Tokuyama Dental Corp) + micro-hybrid composite; Group NOV/nanofiber-reinforced low-viscosity composite (NovaPro Flow, Nanova) + micro-hybrid composite; and Group RIB/polyethylene fiber [Ribbond, Ribbond Inc] + micro-hybrid composite. Distilled water was used for storage for 24 hours. Using microcomputed tomography (micro-CT), the teeth were scanned immediately after cavity preparation (T0), then 24 hours after restorative procedures (T1). Volumetric cuspal deflection in cubic millimeters (mm3) was analyzed on the palatal and buccal regions of each restoration individually at T0 and T1 scans. Gap formation (mm3) was evaluated to quantify the volume of black spaces at the tooth-resin interface on the T1 scan. After these scans, using a universal testing machine, the teeth were subjected to a fracture strength test (0.5 millimeters/minute [mm/min]). The fracture surfaces were analyzed with a stereomicroscope. The data were analyzed using the Kruskal-Wallis, one-way analysis of variance (ANOVA), and Dunn's tests (p< 0.05). No significant differences in volumetric cuspal deflection and fracture strength were detected for all tested groups (p>0.05). Group RIB exhibited significantly higher gap formation values in comparison with all other groups (p<0.05). Predominant failure mode was favorable.
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Affiliation(s)
- C Deger
- Ceren Deger, restorative dentistry specialist, Department of Restorative Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Z C Özduman
- Zümrüt Ceren Özduman, assistant professor, Department of Restorative Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - B Oglakci
- *Burcu Oglakci, associate professor, Department of Restorative Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - E Eliguzeloglu Dalkilic
- Evrim Eliguzeloglu Dalkilic, professor, Department of Restorative Dentistry, Bezmialem Vakif University, Istanbul, Turkey
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Zavattini A, Mancini M, Higginson J, Foschi F, Pasquantonio G, Mangani F. Micro-computed tomography evaluation of microleakage of Class II composite restorations: An in vitro study. Eur J Dent 2019; 12:369-374. [PMID: 30147401 PMCID: PMC6089047 DOI: 10.4103/ejd.ejd_28_18] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Objective: The aim of this study is to investigate the microleakage attained with three resin-based material used to restore deep Class II cavities. A null hypothesis was chosen: there is no difference in microleakage among the tested materials. Materials and Methods: A total of 30 Class II cavities were prepared in freshly extracted molars with the proximal mesial and distal margins located, respectively, 1.5 mm apically and 1.5 mm coronally to the cementum-enamel junction. Restorations were completed using a three-step enamel-dentin adhesive system “Etch and Rinse,” margins were relocated using a micro-hybrid, preheated, or flowable composite and restorations were then completed using a conventional composite. All samples were coated with nail varnish with the exception of an area along the margins and apex was sealed using epoxide cement and then thermocycled (30-s dwell time, 5°C/55°C, 1000 cycles). A 50% ammoniac AgNO3 solution was used as tracer according to Tay's protocol. The microleakage analysis was performed using a microtomography system Sky-scan 1072 (SKYSCAN, Kartuizersweg 3B 2550, Konitch, Belgium). Results: The mean microleakage of all the tested materials showed greater leakage in the cementum margins; flowable composite exhibit greater leakage among the groups. Significant differences (P < 5%) within groups in both enamel and dentin margins were present. None of the tested materials eliminated marginal microleakage. Preheated composite showed significantly lesser microleakage. Conclusion: Tested materials showed statistical differences in microleakage; thus, the null hypothesis has been rejected. Within the limitations of the present experimental procedure, it can be concluded that flowable resin composite should be avoided at the dentin/cementum margin.
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Affiliation(s)
- Angelo Zavattini
- Department of Restorative Dentistry, School of Dentistry, Cardiff University, Cardiff, UK
| | - Manuele Mancini
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome RM, Italy
| | - James Higginson
- Department of Oral and Maxillofacial Surgery, Institute of Head and Neck Studies and Education, School of Cancer Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Federico Foschi
- Department of Conservative Dentistry, King's College London Dental Institute, Guy's Hospital, London SE1 9RT, UK
| | - Guido Pasquantonio
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome RM, Italy
| | - Francesco Mangani
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome RM, Italy
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Albeshti R, Shahid S. Evaluation of Microleakage in Zirconomer®: A Zirconia Reinforced Glass Ionomer Cement. Acta Stomatol Croat 2018; 52:97-104. [PMID: 30034008 PMCID: PMC6047592 DOI: 10.15644/asc52/2/2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective To evaluate the microleakage of four direct restorative materials. Materials and Methods Sixteen sound bovine incisors were chosen and randomly divided into four groups; Group I-Zirconomer, Group II-KetacTM Silver, Group III-FiltekTM Z500 (composite) and Group IV-Dispersalloy® (amalgam). Seven proximal (mesial & distal) cavities, for each material were prepared and restored. All restored samples were stored in 37oC distilled water for 24 hr and then subjected to thermo-cycling process at temperatures between 5-55oC. The samples were immersed in dye solution of 0.5% methylene blue for 24 hr. Each filled cavity was sectioned through the centre of restoration and then studied under a stereomicroscope to assess the marginal leakage. The obtained microleakage scores were statistically analysed. Results The highest mean score of leakage was recorded in Group II-KetacTM Silver followed by Group I-Zirconomer and Group III-FiltekTM Z500 (composite). The lowest mean score of dye penetration was verified in Group IV-Dispersalloy® (amalgam). Statistically, there were significant differences between Zirconomer and other groups of KetacTM Silver and amalgam, whereas the Zirconomer groups had no significant differences with composites. All tested groups showed significant differences with amalgam restorations. Conclusions The marginal leakage was evident in all restorative materials. Further studies with clinical trial have to be done.
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Affiliation(s)
- Rawan Albeshti
- Dental Physical Sciences Unit, Barts and the London School of Medicine and Dentistry, Institute of Dentistry, Queen Mary University of London, London, UK
| | - Saroash Shahid
- Dental Physical Sciences Unit, Barts and the London School of Medicine and Dentistry, Institute of Dentistry, Queen Mary University of London, London, UK
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The Repair of Furcal Perforations in Different Diameters with Biodentine, MTA, and IRM Repair Materials: A Laboratory Study Using an E. Faecalis Leakage Model. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5478796. [PMID: 29568756 PMCID: PMC5820666 DOI: 10.1155/2018/5478796] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 12/07/2017] [Accepted: 12/16/2017] [Indexed: 11/17/2022]
Abstract
The aim of this study is to evaluate the microleakage of repair materials MTA, IRM, and Biodentine applied on furcal perforations with different diameters. One hundred and forty extracted human teeth were used in this study. The teeth were divided into 2 main groups (60 teeth in each) which were then divided into 3 subgroups (n = 20). The remaining 20 teeth were divided into 2 groups (10 in each) to serve as controls. The furcal areas of the teeth were perforated with #2 cylindrical burs in Group 1 whereas perforations were made using #4 cylindrical burs in Group 2. Each subgroup of both Groups 1 and 2 received ProRoot MTA (ProRoot, USA), Biodentine (Septodont), or IRM (Dentsply, USA) to repair the perforations. An experimental set-up was established to contaminate repaired perforations with E. Faecalis (ATCC29212). The turbidity of bacteria was observed on the 7th, 15th, 30th, and 45th days. The data was analysed by chi-square test (p > 0.05). The number of bacteria in the group perforated by bur #2 and closed by MTA was found to be lower than the other groups on the 7th day (p < 0.05). There was no statistical difference in the bacterial counts of other groups on the 15th, 30th, and 45th days (p > 0.05). ProRoot MTA was found to be more successful in the prevention of bacterial leakage compared to IRM and Biodentine in smaller perforations during the 1st week.
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Wong AWY, Zhang S, Li SKY, Zhang C, Chu CH. Clinical studies on core-carrier obturation: a systematic review and meta-analysis. BMC Oral Health 2017; 17:167. [PMID: 29284463 PMCID: PMC5747112 DOI: 10.1186/s12903-017-0459-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 12/14/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND This systematic review aimed to evaluate the clinical performance of core-carrier obturation in endodontic treatment. METHODS Keywords of "(core carrier OR Thermafil) OR (cold lateral condensation OR lateral condensation) OR (warm vertical condensation OR vertical condensation) AND (obturation OR root canal filling) AND clinical study" were searched for all obtainable publications up to year 2017 in the databases of PubMed, ScienceDirect, EMBASE, Scopus and Web of Science. The success rate, short-term postoperative pain, overfilling and adaptation of core-carrier obturation from clinical studies were selected. Reviews, laboratory studies, animal studies and irrelevant reports were excluded. RESULTS 1349 relevant articles were identified with 149 duplicated articles removed and 1173 irrelevant articles were excluded after screening. The titles and abstracts of the 19 identified articles were screened in the systematic review. The full texts of remaining articles were retrieved with data extracted for meta-analysis on the success rate, postoperative pain, overfilling and adaptation of obturation. The pooled success rate of core-carrier obturation was 83% (95% CI: 69%-91%). The pooled incidence of 1-day and 7-day short-term postoperative pain were 35% (95% CI: 15%-62%) and 6% (95% CI: 1-35%). The pooled proportion of teeth with overfilling and adequate adaptation of the obturation material were 31% (95% CI: 18%-50%) and 85% (95% CI: 75%-91%), respectively. CONCLUSIONS The success rate of endodontic treatment using core-carrier obturation was 83%. Short-term postoperative pain was not uncommon (24%). Most teeth (85%) had adequate adaptation using core-carrier obturation material, but a considerable amount of teeth (31%) had overfilling.
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Affiliation(s)
- Amy Wai-Yee Wong
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China
| | - Shinan Zhang
- School of Stomatology, Kunming Medical University, Yunnan, China
| | | | - Chengfei Zhang
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China
| | - Chun-Hung Chu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China. .,3B53A, Prince Philip Dental Hospital, 34 Hospital Road, Hong Kong, SAR, China.
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Nahedh HA, Sibai NS. Evaluation of Interfacial Gap Volume of Two Low-shrinkage Composites Using Micro-Computed Tomography. Oper Dent 2017; 42:658-668. [PMID: 29144874 DOI: 10.2341/15-301-l] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES To investigate the efficacy of X-ray micro-computed tomography (μCT) in the detection and quantification of interfacial gap formation in standardized Class I and Class II resin composite restorations, to compare the interfacial gaps for two low-shrinkage resin composites with a methacrylate composite material, and to determine any correlation between the cavity configuration factor (C-factor) and the volume of gaps formed. METHODS AND MATERIALS Sixty standardized Class I and Class II cavities were prepared and divided into six groups. Three types of composites, with their recommended self-etching adhesive systems, were used: Filtek Z250 XT; Estelite Sigma Quick; and Filtek P90. Each of the composite materials was placed in 10 Class I and 10 Class II cavities. The specimens were digitized using Skyscan 1172 μCT. They were examined for gap volume measurements, the thickness of the adhesive layer, and location of interfacial gaps. RESULTS There was a significant difference in the mean gap volume percentages of the three materials. The gap volume percent of Estelite Sigma quick was significantly lower than that of Filtek P90. No significant difference in the mean gap volume percentages of Class I and Class II restorations was found, except for Estelite Sigma Quick, in which the Class I gap volume percentage was higher than that of the Class II restorations. CONCLUSIONS μCT is an efficacious tool for the measurement of volumetric gaps formed at the tooth/restoration interface and for the evaluation of the adhesive layer. The differences in the C-factor do not always have a pronounced effect on the gap volumes of low-shrinkage composites.
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Ramezani G, Savadkouhi ST, Sayahpour S. The Effect of Chlorhexidine Mixed with Mineral Trioxide Aggregate on Bacterial Leakage of Apical Plug in Simulated Immature Teeth Using Human Fresh Saliva. J Int Soc Prev Community Dent 2017; 7:247-251. [PMID: 29026696 PMCID: PMC5629852 DOI: 10.4103/jispcd.jispcd_198_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 07/29/2017] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES Apexification is a challenging treatment in necrotic open apices teeth and bacterial leakage is the main reason for the treatment failure. The aim of this study is to compare the effect of mixing mineral trioxide aggregate (MTA) with chlorhexidine (CHX) on microbial leakage in apexification treatment of simulated immature teeth. MATERIALS AND METHODS In this experimental study, 44 intact central incisors were selected based on inclusion criteria. The coronal and 2 mm of apical part of the specimens were removed till all root segments were 12 mm long. The apical parts of the teeth were prepared using Profile #40/0.06 (Dentsply Maillefer, Ballaigues, Switzerland) in the apical to coronal direction to simulate open apices. The specimens were separated into experimental groups (n = 40) and control groups (n = 4). Group 1 delivered a 5 mm apical plug by MTA/H2O and group 2 delivered an apical plug by MTA/CHX 0.12%. The positive control group had no apical barrier; on the other hand, the negative control group had an apical barrier and two layers of nail varnish on entire root surface. The microbial leakage assessment was done by a dual-chamber apparatus using fresh human saliva after 10-week follow-up. The turbidity of the lower chamber containing the Brain Heart Infusion (BHI) solution was analyzed based on the McFarland (0.5) standard which utilizes spectrophotometry results. Data analyses were done using Chi-square, Kaplan-Meier, and log-rank tests. RESULTS MTA/CHX group had lower microbial leakage percentage (P = 0.001) and longer time of leakage (P = 0.002) in compared with MTA/H2O group and the difference was statistically meaningful. CONCLUSION Based on the results of this study, MTA/CHX mixture can reduce the amount of bacterial leakage.
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Affiliation(s)
| | | | - Sahar Sayahpour
- Department of Pediatric Dentistry, Dental Branch, Islamic Azad University, Tehran, Iran
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Abedi-Amin A, Luzi A, Giovarruscio M, Paolone G, Darvizeh A, Agulló VV, Sauro S. Innovative root-end filling materials based on calcium-silicates and calcium-phosphates. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:31. [PMID: 28108959 DOI: 10.1007/s10856-017-5847-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 01/04/2017] [Indexed: 06/06/2023]
Abstract
This in vitro study evaluated the apical sealing ability, bioactivity and biocompatibility of an experimental calcium silicate-based and two light-curing calcium silicate/calcium-phosphate cements as potential root end filling materials. A calcium silicate Portland-based (Control PC), an experimental calcium silicate (Exp. PC) and two light-curing cements (LC-CaP; LC-Si/CaP) were assessed for their alkalinising activity (pH) and biocompatibility. Single-rooted human canines were endodontically treated, filled with gutta-percha and finally submitted to apicoectomy. Root end fillings were performed using all tested cements, and their apical sealing ability was evaluated up to 4 weeks of immersion in simulated body fluid (SBF). The mineral precipitation at the apical region and the cement adaptation to root dentine were also evaluated through non-destructive optical microscopy both at 24 h and after prolonged water storage (four week). LC-CaP and LC-Si/CaP had neutral pH, the greatest sealing ability (24 h) and excellent cytocompatibility. The Exp. PC cement presented sealing ability after two and four weeks, as well as biocompatibility after four and seven days, similar to LC-CaP and LC-Si/CaP. The control PC cement showed the lowest sealing ability and the greatest cytotoxicity. Mineral precipitation was observed in all groups, while some differences were seen in terms of cement adaptation along the root canal dentine walls. The experimental light-curable cements as well as the experimental PC might be suitable root end filling materials with appropriate (in vitro) sealing ability, biocompatibility and aptitude to induce mineral precipitation.
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Affiliation(s)
- Ali Abedi-Amin
- Departamento de Odontología, Facultad de Ciencias de la Salud, CEU-Cardenal Herrera University, Valencia, Spain
| | - Arlinda Luzi
- Departamento de Odontología, Facultad de Ciencias de la Salud, CEU-Cardenal Herrera University, Valencia, Spain
| | - Massimo Giovarruscio
- Restorative Dentistry, Oral and Dental Science, Bristol Dental Hospital, Bristol, UK
| | - Gaetano Paolone
- Restorative Dentistry, Università Vita-Salute San Raffaele, Milano, Italy
| | - Atanaz Darvizeh
- Departamento de Odontología, Facultad de Ciencias de la Salud, CEU-Cardenal Herrera University, Valencia, Spain
| | - Victoria Vivó Agulló
- Departamento de Odontología, Facultad de Ciencias de la Salud, CEU-Cardenal Herrera University, Valencia, Spain
| | - Salvatore Sauro
- Departamento de Odontología, Facultad de Ciencias de la Salud, CEU-Cardenal Herrera University, Valencia, Spain.
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Marques-Ferreira M, Abrantes M, Ferreira HD, Caramelo F, Botelho MF, Carrilho EV. Sealing efficacy of system B versus Thermafil and Guttacore obturation techniques evidenced by scintigraphic analysis. J Clin Exp Dent 2017; 9:e56-e60. [PMID: 28149464 PMCID: PMC5268114 DOI: 10.4317/jced.52889] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 06/01/2016] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND This study compared root canal sealing ability, filled by Continuous Wave compaction and two carrier-based obturation systems, using the nuclear medicine approach. MATERIAL AND METHODS Fifty-five single-rooted extracted teeth were selected. The crowns were sectioned and each tooth was instrumented using rotary Protaper® Universal system. The roots were divided into 3 experimental groups and two control groups. Forty-five root canals were filled, using Continuous Wave, GuttaCore or Thermafil system and TopSeal sealer. Ten teeth were used as control. On the 7th days the apices were submersed in a solution of sodium pertechnetate 99mTc for 3 hours and the radioactivity was counted. RESULTS Although apical leakage in the Continuous Wave group was lower compared with GuttaCore and Thermafil groups, there was no statistical difference (p>0.05). CONCLUSIONS System B, GuttaCore and Thermafil techniques showed a similar sealing effect. Key words:Continuous wave compaction, Gutta percha core-carrier, leakage, nuclear medicine.
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Affiliation(s)
| | - Margarida Abrantes
- PhD, Department of Biophysics and Biomathematics, IBILI-Faculty of Medicine, University of Coimbra, Portugal
| | - Hugo-Diogo Ferreira
- DDS, Department of Dentistry, Faculty of Medicine, University of Coimbra, Portugal
| | - Francisco Caramelo
- PhD, Department of Biophysics and Biomathematics, IBILI-Faculty of Medicine, University of Coimbra, Portugal
| | - Maria-Filomena Botelho
- PhD, Department of Biophysics and Biomathematics, IBILI-Faculty of Medicine, University of Coimbra, Portugal
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Sisli SN, Ozbas H. Comparative Micro–computed Tomographic Evaluation of the Sealing Quality of ProRoot MTA and MTA Angelus Apical Plugs Placed with Various Techniques. J Endod 2017; 43:147-151. [DOI: 10.1016/j.joen.2016.09.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 09/09/2016] [Accepted: 09/12/2016] [Indexed: 11/29/2022]
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Križnar I, Seme K, Fidler A. Bacterial microleakage of temporary filling materials used for endodontic access cavity sealing. J Dent Sci 2016; 11:394-400. [PMID: 30895003 PMCID: PMC6395255 DOI: 10.1016/j.jds.2016.06.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 06/03/2016] [Indexed: 11/18/2022] Open
Abstract
Background/purpose Providing a tight coronal seal is key for the success of endodontic treatment, therefore the study aimed to assess bacterial microleakage of materials used for short- and long-term temporization. Materials and methods One hundred and twenty-eight human upper-third molars were divided into six experimental groups (n = 20) and two control groups: negative (n = 4) and positive (n = 4). The standardized access cavities were prepared and filled with: (1) Cavit; (2) Fuji II LC; (3) Fuji IX; (4) Voco Clip; (5) AdheSE and Tetric EvoCeram; (6) Excite and Tetric EvoCeram. The crown of each tooth was sectioned to obtain 5.5-mm-high disks, which were assembled in a standard setup for bacterial microleakage studies using Streptococcus mutans. The monitoring lasted 90 days. Kaplan-Meier survival analysis was performed. Results The lowest amount of leaking samples was found in AdheSE and Tetric EvoCeram (31.3%), Cavit (33.3%), and Excite and Tetric EvoCeram groups (35.3%), followed by Fuji II LC (66.7%), Voco Clip (83.3%). and Fuji IX (88.2%) groups. According to the day of microleakage, materials could be classified in three groups with statistically significant differences (P < 0.05). In the first group were Cavit (70 days), AdheSE and Tetric EvoCeram (68 days), and Excite and Tetric EvoCeram (65 days), in the second group were Voco Clip (44 days) and Fuji II LC (43 days), and in the third group was Fuji IX (21 days). Conclusion None of the tested materials were able to completely prevent bacterial microleakage. Adhesively bonded composites and Cavit offer better sealing compared with glass ionomer cements, resin modified glass ionomer cements, and composites without the use of an adhesive system.
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Affiliation(s)
- Igor Križnar
- Department for Dental Diseases and Morphology of Dental Organ, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia
- Corresponding author. Department for Dental Diseases and Morphology of Dental Organ, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia.
| | - Katja Seme
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia
| | - Aleš Fidler
- Department for Dental Diseases and Morphology of Dental Organ, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia
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Benz K, Markovic L, Jordan RA, Novacek C, Jackowski J. In vitro evaluation of the apical seal of two different retrograde filling materials. AUST ENDOD J 2016; 43:29-33. [PMID: 27238158 DOI: 10.1111/aej.12161] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2016] [Indexed: 11/29/2022]
Abstract
To determine whether the selection of retrograde filling material or the choice of instruments in root tip resection influences the seal of the retrograde root filling. Seventy-two single-rooted teeth were used. Root resection was performed using a Lindemann bone cutter, a Lindemann bone cutter with A-shaped cutting design or a diamond-coated bur. Retro-cavities were prepared by piezo-tips and filled with Super-EBA or MTA. Teeth were made transparent and dye penetration was assessed. Teeth filled with MTA, irrespective of the resection instrument, showed no measurable dye penetration. All groups filled with Super-EBA showed an apical leakage. There were no significant differences between the three groups filled with Super-EBA (P = 0.09). The comparison of MTA versus Super-EBA showed significant superiority in apical seal in favour of MTA (P < 0.0001). To use MTA as a retrograde filling material showed superior results in terms of the tightness of the apical seal as compared to Super-EBA.
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Affiliation(s)
- Korbinian Benz
- Department of Health, Department of Oral Surgery and Policlinical Ambulance, Faculty of Dental Medicine, University of Witten/Herdecke, Witten, Germany
| | - Ljubisa Markovic
- Department of Health, Department of Operative and Preventive Dentistry, Faculty of Dental Medicine, University of Witten/Herdecke, Witten, Germany
| | - R A Jordan
- Department I: Epidemiology and Delivery of Health Care Services, Institute of German Dentists, Cologne, Germany
| | | | - Jochen Jackowski
- Faculty of Dental Medicine, Department of Oral Surgery and Policlinical Ambulance, University of Witten/Herdecke, Witten, Germany
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14
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Savadkouhi ST, Bakhtiar H, Ardestani SE. In vitro and ex vivo microbial leakage assessment in endodontics: A literature review. J Int Soc Prev Community Dent 2016; 6:509-516. [PMID: 28032041 PMCID: PMC5184383 DOI: 10.4103/2231-0762.195516] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to perform a literature review of published in-vitro and ex-vivo studies, which evaluated microbial leakage in endodontics in the past 10 years. A comprehensive electronic literature search was carried out in PubMed database for English articles published from 2005 to 2016 using the keywords “endodontics,” “in vitro,” “ex vivo,” “microbial leakage,” “microbial penetration,” “saliva,” “Enterococcus faecalis,” “E. faecalis,” “endodontic sealers,” “temporary filling material,” “apical plug,” “mineral trioxide aggregate,” and “MTA.” The keywords were combined using Boolean operators AND/OR. Based on our search strategy, 33 relevant articles were included in the study. There are three main methods for assessment of bacterial microleakage, namely, (A) the dual-chamber leakage model, (B) detection of bacteria using a scanning electron microscope (SEM), and (C) polymerase chain reaction. All bacterial leakage models have some limitations and may yield different results compared to other microleakage evaluation techniques (i.e., dye penetration, fluid filtration, or electrochemical tests). The results of SEM correlated with those of microbial leakage test in most studies. Microbial leakage test using saliva better simulates the clinical setting for assessment of the leakage of single or mixed bacterial species.
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Affiliation(s)
| | - Hengameh Bakhtiar
- Department of Endodontic, Dental Branch of Islamic Azad University, Tehran, Iran
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15
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Methodology for Morphometric Analysis of Modern Human Contralateral Premolars. J Comput Assist Tomogr 2016; 40:617-25. [DOI: 10.1097/rct.0000000000000417] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Michelotto ALDC, Gasparetto JC, Campos FR, Sydney GB, Pontarolo R. Applying liquid chromatography-tandem mass spectrometry to assess endodontic sealer microleakage. Braz Oral Res 2015; 29:1-7. [PMID: 26313349 DOI: 10.1590/1807-3107bor-2015.vol29.0100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Accepted: 05/15/2015] [Indexed: 11/21/2022] Open
Abstract
The objective of this study was to describe a new method for the quantitative analysis of a microleakage of endodontic filling materials. Forty extracted single-rooted teeth were randomly divided into three experimental groups. After root canal shaping, the experimental groups were filled using the lateral condensation technique with the Epiphany system (G1), with gutta-percha + Sealapex (G2), and with gutta-percha + AH Plus (G3). Each root was mounted on a modified leakage testing device, and caffeine solution was used as a tracer (2000 ng mL-1, pH 6.0), applied in the coronal direction towards the tooth apex, creating a hydrostatic pressure of 2.55 kPa. Presence of caffeine in the receiving solution was measured after 10, 30, and 60 days, using high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). None of the groups presented microleakage at 10 days. At 30 days, G2 and G3 showed similar infiltration patterns (means: 16.0 and 13.9 ng mL-1, respectively), whereas G1 showed significantly higher values (mean: 105.2 ng mL-1). At 60 days, leakage values were 182.6 ng mL-1 for G1, 139.0 ng mL-1 for G2, and 53.5 ng mL-1 for G3. AH Plus showed the best sealing ability and HPLC-MS/MS showed high sensitivity and specificity for tracer quantification.
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Affiliation(s)
| | | | | | - Gilson Blitzkow Sydney
- Department of Endodontics, School of Dentistry, Universidade Federal do Paraná, Curitiba, PR, BR
| | - Roberto Pontarolo
- Department of Pharmacy, Health Sciences, Universidade Federal do Paraná, Curitiba, PR, BR
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17
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Keles A, Ahmetoglu F, Ocak MS, Dayi B, Bozkurt A, Orucoglu H. Comparative analysis of three different filling techniques and the effects of experimental internal resorptive cavities on apical microleakage. Eur J Dent 2014; 8:32-37. [PMID: 24966743 PMCID: PMC4054029 DOI: 10.4103/1305-7456.126237] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objectives: The aim of this study was to evaluate the sealing abilities of three different gutta-percha techniques in experimentally defective roots (EDR) and non-defective roots (NR). Materials and Methods: Sixty canine teeth were divided into six groups of ten; Group 1, NR + cold lateral condensation (CLC); Group 2, EDR + LC; Group 3, NR + BeeFill; Group 4, EDR + BeeFill; Group 5, NR + Thermafil; and Group 6, EDR + Thermafil. Apical leakage was measured using a computerized fluid filtration meter with a laser system. Results: Statistical analysis revealed that the CLC demonstrated more microleakage in the EDR than in the NR (P < 0.01). Thermafil demonstrated more microleakage in the NR than in the EDR (P < 0.01). No statistically significant differences were found between the BeeFill groups (P > 0.05). Conclusions: The results of this study indicate that internal resorptive cavities can affect the apical sealing properties of different root canal filling techniques, with Thermafil ensuring the lowest apical microleakage.
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Affiliation(s)
- Ali Keles
- Department of Endodontics, Inonu University, Malatya, Turkiye
| | - Fuat Ahmetoglu
- Department of Endodontics, Inonu University, Malatya, Turkiye
| | - Mevlut S Ocak
- Department of Endodontics, Inonu University, Malatya, Turkiye
| | - Burak Dayi
- Department of Conservative Dentistry, Inonu University, Malatya, Turkiye
| | - Alperen Bozkurt
- Department of Endodontics, Selcuk University, Konya, Turkiye
| | - Hasan Orucoglu
- Department of Endodontics, Abant Izzet Baysal University, Bolu, Turkiye
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18
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Kazemipoor M, Modaresi J, Zandi H, Vasee N, Farzaneh V. Lack of correlation between microbial penetration method and electro chemical technique for assessment of leakage through the root canal fillings. Contemp Clin Dent 2014; 5:71-4. [PMID: 24808699 PMCID: PMC4012122 DOI: 10.4103/0976-237x.128670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Aims: The purpose of this study was to compare microbial penetration method and electrochemical technique for evaluation of the apical seal. Materials and Methods: A total of 28 teeth were prepared using the step-back technique to ISO size 40 master apical files. The specimens were randomly divided into an experimental group, two positive and two negative controls. Root canals in the experimental and negative control group were filled with gutta-percha (GP) and sealer, using lateral condensation technique. In the positive control group, canals were filled with GP without any sealer. The external surface of each tooth was coated with two layers of the nail varnish, except for the access opening and the apical foramen. In the negative control group, the teeth were completely covered with nail varnish. The apical seal was recorded with two methods, each successively used on the same teeth: An electrochemical method and a bacterial penetration method. Statistical Analysis Used: The correlation of the electro chemical readings with the results obtained from bacterial micro leakage test was evaluated by Pearson's correlation coefficient. Results: Correlation coefficient of the measurements obtained from the two evaluation methods, was 0.23 (r = 0.23), so the correlation was not statistically significant (P = 0.275). Conclusions: This study shows that several studies by different methods are necessary before evaluation of the marginal leakage.
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Affiliation(s)
- Maryam Kazemipoor
- Department of Endodontics, Shahid Sadooghi University of Medical Sciences, Yazd, Iran
| | - Jalil Modaresi
- Department of Endodontics, Shahid Sadooghi University of Medical Sciences, Yazd, Iran
| | - Hengameh Zandi
- Department of Microbiology, School of Medicine, Shahid Sadooghi University of Medical Sciences, Yazd, Iran
| | - Narges Vasee
- Department of Endodontics, Shahid Sadooghi University of Medical Sciences, Yazd, Iran
| | - Vaziri Farzaneh
- Department of Periodontics, School of Dentistry, Shahid Sadooghi University of Medical Sciences, Yazd, Iran
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19
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Mahdi AA, Bolaños-Carmona V, Gonzalez-Lopez S. Bond strength to root dentin and fluid filtration test of AH Plus/gutta-percha, EndoREZ and RealSeal systems. J Appl Oral Sci 2014; 21:369-75. [PMID: 24037078 DOI: 10.1590/1678-775720130114] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 06/20/2013] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVES To investigate the bond strength and seal ability produced by AH Plus/gutta-percha, EndoREZ and RealSeal systems to root canal dentin. MATERIAL AND METHODS Sixty extracted single-root human teeth, instrumented manually to size 40, were divided into three groups (n=20) according to the sealer used; G1: AH Plus, G2: EndoREZ, and G3: RealSeal sealers. After filling using the lateral condensation technique, each sealer group was randomly divided into two subgroups according to the tests applied (n=10 for µPush-out test and n=10 for fluid filtration test). A fluid filtration method was used for quantitative evaluation of apical leakage. Four 1-mm-thick slices (cervical and medium level) were obtained from each root sample and a µPush-out test was performed. Failure modes were examined under microscopy at 40x, and a one-way ANOVA was applied to analyze the permeability. Non-parametrical statistics for related (Friedman's and Wilcoxon's rank tests) or unrelated samples (Kruskal-Wallis' and Mann-Whitney's tests) allowed for comparisons of µPush-out strength values among materials at the different levels. Statistical significance was accepted for p values <.05. RESULTS There are no significant differences among fluid filtration of the three sealers. The sealer/core material does not significantly influence the µPush-out bond strength values (F=2.49; p=0.10), although statistically significant differences were detected with regard to root level (Chi2=23.93; p<0.001). AH Plus and RealSeal obtained higher bond strength to intraradicular dentin in the medium root slices. CONCLUSIONS There are no significant differences between the permeability and global µPush-out bond strength to root canal dentin achieved by AH Plus/gutta-percha, EndoREZ and RealSeal systems.
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Affiliation(s)
- Alaa Abdul Mahdi
- Department of Stomatology, School of Dentistry, University of Granada, Granada, Spain
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20
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Angerame D, De Biasi M, Sossi D, Marigo L, Castagnola R, Somma F, Castaldo A. Periapical healing after simplified endodontic treatments: A digital subtraction radiography study. GIORNALE ITALIANO DI ENDODONZIA 2013. [DOI: 10.1016/j.gien.2013.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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21
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Machado R, Silva Neto UXD, Ignácio SA, Cunha RS. Lack of correlation between obturation limits and apical leakage. Braz Oral Res 2013; 27:331-5. [PMID: 23903863 DOI: 10.1590/s1806-83242013000400007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Accepted: 04/29/2013] [Indexed: 11/22/2022] Open
Abstract
The aim of this paper was to evaluate a possible correlation between obturation limits and leakage. Thirty-six extracted human mandibular incisors were used, characterized by straight and single canals, non-anatomical complexities, absence of previous endodontic treatment, complete root formation and patent foramen. For standardization of the specimens for the leakage analysis, foraminal instrumentation was performed up to a Flexofile #25 (Dentsply-Maillefer, Ballaigues, Switzerland). All specimens were instrumented and filled following the same protocol, and the obturation limits were measured using Axiovision 4.5 Software (Carl Zeiss Vision, Hallbergmoos, Germany). The specimens were then separated into three groups (n=12) according to the following variables: Group I--obturation limits ranging from 0 mm to 0.76 mm of the main apical foramen. Group II--obturation limits ranging from 0.77 mm to 0.98 mm of the main apical foramen. Group III--obturation limits ranging from 0.99 mm to 1.68 mm of the main apical foramen. Apical leakage was quantified by fluid filtration. The analyses were confronted using Pearson's test (p>0.05). Groups I, II and III showed Pearson correlation values (r2) of -0.152, -0.186 and 0.058, respectively. No correlation was found between the obturation limits and apical leakage.
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Affiliation(s)
- Ricardo Machado
- Postgraduate Program, School of Dentistry, Pontifícia Univ Católica do Paraná-PUCPR, Curitiba, PR, Brazil.
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22
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Lucena C, Lopez JM, Pulgar R, Abalos C, Valderrama MJ. Potential errors and misuse of statistics in studies on leakage in endodontics. Int Endod J 2012; 46:323-31. [DOI: 10.1111/j.1365-2591.2012.02118.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Accepted: 07/18/2012] [Indexed: 11/29/2022]
Affiliation(s)
- C. Lucena
- Department of Conservative Dentistry, School of Dentistry; University of Granada; Granada; Spain
| | - J. M. Lopez
- Department of Conservative Dentistry, School of Dentistry; University of Granada; Granada; Spain
| | - R. Pulgar
- Department of Conservative Dentistry, School of Dentistry; University of Granada; Granada; Spain
| | - C. Abalos
- Department of Conservative Dentistry, School of Dentistry; University of Seville; Seville; Spain
| | - M. J. Valderrama
- Department of Statistics and Operations Research, Faculty of Pharmacy; University of Granada; Granada; Spain
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23
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Effects of light attenuation by fibre posts on polymerization of a dual-cured resin cement and microleakage of post-restored teeth. J Dent 2011; 39:309-15. [DOI: 10.1016/j.jdent.2011.01.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 01/25/2011] [Accepted: 01/25/2011] [Indexed: 01/22/2023] Open
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24
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Rechenberg DK, De-Deus G, Zehnder M. Potential systematic error in laboratory experiments on microbial leakage through filled root canals: review of published articles. Int Endod J 2011; 44:183-94. [PMID: 21219357 DOI: 10.1111/j.1365-2591.2010.01821.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM To systematically evaluate whether published studies on microbial leakage through filled root canals in human teeth embedded in a two-chamber system were properly controlled. Specifically, the control for the assumption that leakage should occur through the root canal rather than other routes was investigated. METHODOLOGY A systematic search was conducted using Medline, Biosis, Cochrane, Embase, and Web of Science databases. In addition, the reference lists of review articles pertaining to the topic were searched. No language restriction was applied. Two independent reviewers screened titles and abstracts. All articles deemed appropriate by either reviewer were included in the full-text evaluation. In case of disagreement, a referee arbitrated between the reviewers. RESULTS With 93.8% agreement prior to discussion and arbitration, 67 articles were included. On average, the size of the negative control group was 30% (mean) of the n in the experimental groups (minimum=0.0%, maximum=100%, SD=27%). The majority of studies (57 of 67) used inadequate negative controls. The whole root was covered with the sealing material in these specimens, whilst the root tip was left uncovered in the experimental groups. Consequently, leakage between outer root surface and sealing material was not controlled for. The authors of the remaining 10 communications did not state clearly how negative control assessments were performed. CONCLUSIONS Experimental investigations should be performed to assess the routes of microbial leakage in two-chamber models.
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Affiliation(s)
- D-K Rechenberg
- Department of Preventive Dentistry, Periodontology and Cariology, University of Zürich Center of Dental Medicine, Zürich
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25
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Ari H, Belli S, Gunes B. Sealing ability of Hybrid Root SEAL (MetaSEAL) in conjunction with different obturation techniques. ACTA ACUST UNITED AC 2010; 109:e113-6. [PMID: 20451827 DOI: 10.1016/j.tripleo.2010.02.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Revised: 02/08/2010] [Accepted: 02/10/2010] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The objective of this study was to evaluate the apical sealing ability of Hybrid Root SEAL (MetaSEAL) in conjunction with different obturation techniques. METHODOLOGY Sixty-eight extracted human mandibular straight single-rooted teeth with mature apices were prepared using a step-back technique and divided into 4 experimental groups (n = 15). An additional 8 teeth were prepared for controls (3 for positive, 3 for negative control, and 2 more for calculating 100% leakage). The experimental groups were obturated with Hybrid Root SEAL (MetaSEAL) using cold lateral condensation, vertical condensation, Thermafil, and Ultrafil techniques. Fluid movement along the filled canals was measured using a fluid filtration method. Measurements were made at 2-minute intervals for 8 minutes. The data were calculated as microL/min and statistically analyzed using 1-way ANOVA and Duncan Test. RESULTS Cold lateral and vertical condensation had significantly less fluid movement than the Thermafil and Ultrafil groups. Thermafil group had the highest fluid movement values when compared with the other groups (P < .01). CONCLUSION Hybrid Root SEAL (MetaSEAL) had less fluid movement with cold lateral and vertical condensation techniques when compared with Thermafil and Ultrafil techniques.
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Affiliation(s)
- Hale Ari
- Selcuk University, Faculty of Dentistry, Department of Endodontics, Konya, Turkey.
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26
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27
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Dadresanfar B, Khalilak Z, Shiekholeslami M, Afshar S. Comparative study of the sealing ability of the lateral condensation technique and the BeeFill system after canal preparation by the Mtwo NiTi rotary system. J Oral Sci 2010; 52:281-5. [DOI: 10.2334/josnusd.52.281] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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28
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Williamson AE, Marker KL, Drake DR, Dawson DV, Walton RE. Resin-based versus gutta-percha-based root canal obturation: influence on bacterial leakage in an in vitro model system. ACTA ACUST UNITED AC 2009; 108:292-6. [DOI: 10.1016/j.tripleo.2009.01.043] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2008] [Revised: 01/21/2009] [Accepted: 01/25/2009] [Indexed: 11/27/2022]
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29
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Periapical Inflammation and Bacterial Penetration After Coronal Inoculation of Dog Roots Filled With RealSeal 1 or Thermafil. J Endod 2009; 35:852-7. [DOI: 10.1016/j.joen.2009.03.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2008] [Revised: 03/23/2009] [Accepted: 03/28/2009] [Indexed: 11/17/2022]
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30
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Herbert J, Bruder M, Braunsteiner J, Altenburger MJ, Wrbas KT. Apical Quality and Adaptation of Resilon, EndoREZ, and Guttaflow Root Canal Fillings in Combination with a Noncompaction Technique. J Endod 2009; 35:261-4. [PMID: 19166786 DOI: 10.1016/j.joen.2008.11.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Revised: 10/26/2008] [Accepted: 11/02/2008] [Indexed: 10/21/2022]
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31
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Brosco VH, Bernardineli N, Torres SA, Consolaro A, Bramante CM, de Moraes IG, Garcia RB. Bacterial leakage in root canals obturated by different techniques. Part 1: microbiologic evaluation. ACTA ACUST UNITED AC 2008; 105:e48-53. [DOI: 10.1016/j.tripleo.2007.07.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2007] [Revised: 07/02/2007] [Accepted: 07/10/2007] [Indexed: 11/17/2022]
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32
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Lin ZM, Jhugroo A, Ling JQ. An evaluation of the sealing ability of a polycaprolactone-based root canal filling material (Resilon) after retreatment. ACTA ACUST UNITED AC 2007; 104:846-51. [PMID: 17905607 DOI: 10.1016/j.tripleo.2007.05.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2007] [Revised: 05/15/2007] [Accepted: 05/15/2007] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the sealing ability of Resilon after retreatment. STUDY DESIGN Sixty-six single-rooted mandibular premolars were enlarged to apical size 45 and then obturated with Resilon. The roots were randomly divided into 3 groups (n = 22/group). In group 1 no further treatment was done. Groups 2 and 3 were reinstrumented to apical size 60 using K-files and ProFile, respectively. In each group, 4 samples were kept for environmental scanning electron microscopy (ESEM) analysis. The remaining roots from groups 2 and 3 were refilled with Resilon. Sixteen roots from each group were then evaluated for microleakage; two roots served as controls. Data were analyzed statistically by Kruskall-Wallis test. RESULTS There were no significant differences between the experimental groups (P > .05). The ESEM showed new attachment of resin tags on the dentin surface of retreated roots. CONCLUSION Resilon can be used for retreatment, but it still allowed microleakage.
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Affiliation(s)
- Zheng-Mei Lin
- Department of Endodontics and Conservative Dentistry, Guanghua College of Stomatology, Sun Yat-sen University, Guangzhou, China
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33
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Shemesh H, van den Bos M, Wu MK, Wesselink PR. Glucose penetration and fluid transport through coronal root structure and filled root canals. Int Endod J 2007; 40:866-72. [PMID: 17877722 DOI: 10.1111/j.1365-2591.2007.01302.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM To measure glucose penetration and fluid transport through coronal root structure and compare it with leakage along the coronal region of root fillings. METHODOLOGY A total of 50 single-rooted teeth were selected and divided into three groups. Ten roots were sectioned longitudinally and the apical portion was removed leaving a total length of 9 mm. These 20 half-roots served as group 1: root structure (n = 20). The canals of the remaining 40 roots were prepared to size 50 and filled with vertically compacted injectable filling material and sealer. Group 2: Resilon + Epiphany (n = 20) and group 3: gutta-percha + AH26 (n = 20). The apical portion of the root was removed. Glucose penetration through the coronal root structure and coronal root fillings was checked over a period of 4 weeks and fluid transport was measured after completion of the glucose penetration test. Differences between the groups were statistically analysed with the Kruskal-Wallis test and the Mann-Whitney test. RESULTS The three groups presented significantly different glucose penetration (P < 0.05). The two groups of filled canals showed significant glucose leakage whilst the root structure group did not show any leakage. In the fluid transport model, the root structure group also did not show any leakage. No significant difference in leakage existed between the two vertically compacted filling materials, Resilon with Epiphany sealer and gutta-percha with AH26 in both models (P > 0.05). CONCLUSION Under the conditions of this study, in both models used, no leakage was observed through root structure. Filled canals were associated with penetration of glucose regardless of the material used.
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34
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Xu Q, Ling J, Cheung GSP, Hu Y. A quantitative evaluation of sealing ability of 4 obturation techniques by using a glucose leakage test. ACTA ACUST UNITED AC 2007; 104:e109-13. [PMID: 17703971 DOI: 10.1016/j.tripleo.2007.05.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2006] [Revised: 05/13/2007] [Accepted: 05/14/2007] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the sealing ability of 4 different obturation techniques by using a glucose leakage test. STUDY DESIGN Eighty extracted single-rooted maxillary incisors were selected for the study. The teeth were decoronated and the root canals prepared using ProFile rotary instruments to an apical dimension of size 40 (0.06 taper). The specimens were then randomly divided into 4 experimental groups (n = 15) and filled with gutta-percha and sealer by using either cold lateral compaction, warm vertical compaction, Thermafil, or the E & Q Plus system. Another 10 teeth each served as the positive and negative controls. A glucose leakage model was used for quantitative evaluation of the coronal-to-apical microleakage at 24 hours, 1, 2, 3, 5, 8, and 12 weeks. RESULTS No significant difference in the cumulative amount of leakage was found among the 4 groups at 24 hours and 1 week (Kruskal-Wallis test, P > .05). Lateral compaction showed significantly more leakage than the other 3 techniques at longer intervals (Mann-Whitney U test, P < .008). No significant difference was found between vertical compaction, Thermafil, and E & Q Plus at all observation times. CONCLUSIONS Warm vertical compaction, Thermafil, and the E & Q Plus system showed a better sealing result than cold lateral compaction of gutta-percha at extended observation periods. The glucose leakage method used in this study was able to provide a nondestructive, quantitative, and long-term evaluation of the sealing ability of root canal fillings.
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Affiliation(s)
- Qiong Xu
- Department of Endodontics, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China.
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